1Dialog Semiconductor DA7219 Audio Codec bindings 2 3DA7219 is an audio codec with advanced accessory detect features. 4 5====== 6 7Required properties: 8- compatible : Should be "dlg,da7219" 9- reg: Specifies the I2C slave address 10 11- interrupts : IRQ line info for DA7219. 12 (See Documentation/devicetree/bindings/interrupt-controller/interrupts.txt for 13 further information relating to interrupt properties) 14 15- VDD-supply: VDD power supply for the device 16- VDDMIC-supply: VDDMIC power supply for the device 17- VDDIO-supply: VDDIO power supply for the device 18 (See Documentation/devicetree/bindings/regulator/regulator.txt for further 19 information relating to regulators) 20 21Optional properties: 22- interrupt-names : Name associated with interrupt line. Should be "wakeup" if 23 interrupt is to be used to wake system, otherwise "irq" should be used. 24- wakeup-source: Flag to indicate this device can wake system (suspend/resume). 25 26- #clock-cells : Should be set to '<1>', two clock sources provided; 27- clock-output-names : Names given for DAI clock outputs (WCLK & BCLK); 28 29- clocks : phandle and clock specifier for codec MCLK. 30- clock-names : Clock name string for 'clocks' attribute, should be "mclk". 31 32- dlg,micbias-lvl : Voltage (mV) for Mic Bias 33 [<1600>, <1800>, <2000>, <2200>, <2400>, <2600>] 34- dlg,mic-amp-in-sel : Mic input source type 35 ["diff", "se_p", "se_n"] 36 37Deprecated properties: 38- dlg,ldo-lvl : Required internal LDO voltage (mV) level for digital engine 39 (LDO unavailable in production HW so property no longer required). 40 41====== 42 43Child node - 'da7219_aad': 44 45Optional properties: 46- dlg,micbias-pulse-lvl : Mic bias higher voltage pulse level (mV). 47 [<2800>, <2900>] 48- dlg,micbias-pulse-time : Mic bias higher voltage pulse duration (ms) 49- dlg,btn-cfg : Periodic button press measurements for 4-pole jack (ms) 50 [<2>, <5>, <10>, <50>, <100>, <200>, <500>] 51- dlg,mic-det-thr : Impedance threshold for mic detection measurement (Ohms) 52 [<200>, <500>, <750>, <1000>] 53- dlg,jack-ins-deb : Debounce time for jack insertion (ms) 54 [<5>, <10>, <20>, <50>, <100>, <200>, <500>, <1000>] 55- dlg,jack-det-rate: Jack type detection latency (3/4 pole) 56 ["32ms_64ms", "64ms_128ms", "128ms_256ms", "256ms_512ms"] 57- dlg,jack-rem-deb : Debounce time for jack removal (ms) 58 [<1>, <5>, <10>, <20>] 59- dlg,a-d-btn-thr : Impedance threshold between buttons A and D 60 [0x0 - 0xFF] 61- dlg,d-b-btn-thr : Impedance threshold between buttons D and B 62 [0x0 - 0xFF] 63- dlg,b-c-btn-thr : Impedance threshold between buttons B and C 64 [0x0 - 0xFF] 65- dlg,c-mic-btn-thr : Impedance threshold between button C and Mic 66 [0x0 - 0xFF] 67- dlg,btn-avg : Number of 8-bit readings for averaged button measurement 68 [<1>, <2>, <4>, <8>] 69- dlg,adc-1bit-rpt : Repeat count for 1-bit button measurement 70 [<1>, <2>, <4>, <8>] 71 72====== 73 74Example: 75 76 codec: da7219@1a { 77 compatible = "dlg,da7219"; 78 reg = <0x1a>; 79 80 interrupt-parent = <&gpio6>; 81 interrupts = <11 IRQ_TYPE_LEVEL_LOW>; 82 83 VDD-supply = <®_audio>; 84 VDDMIC-supply = <®_audio>; 85 VDDIO-supply = <®_audio>; 86 87 #clock-cells = <1>; 88 clock-output-names = "dai-wclk", "dai-bclk"; 89 90 clocks = <&clks 201>; 91 clock-names = "mclk"; 92 93 dlg,ldo-lvl = <1200>; 94 dlg,micbias-lvl = <2600>; 95 dlg,mic-amp-in-sel = "diff"; 96 97 da7219_aad { 98 dlg,btn-cfg = <50>; 99 dlg,mic-det-thr = <500>; 100 dlg,jack-ins-deb = <20>; 101 dlg,jack-det-rate = "32ms_64ms"; 102 dlg,jack-rem-deb = <1>; 103 104 dlg,a-d-btn-thr = <0xa>; 105 dlg,d-b-btn-thr = <0x16>; 106 dlg,b-c-btn-thr = <0x21>; 107 dlg,c-mic-btn-thr = <0x3E>; 108 109 dlg,btn-avg = <4>; 110 dlg,adc-1bit-rpt = <1>; 111 }; 112 }; 113